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/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8187089
* @run main BasicTest
*/
import java.lang.invoke.*;
import java.util.Arrays;
public class BasicTest {
static final int MAX_PARAM_SLOTS = 200;
static int exceedMaxParamSlots = 0;
public static void main(String[] args) throws Throwable {
int expectionTestCases = 0;
Class<?>[] types = new Class<?>[200];
Arrays.fill(types, int.class);
test(MethodType.methodType(String.class, types));
types = new Class<?>[100];
Arrays.fill(types, long.class);
test(MethodType.methodType(String.class, types));
// test cases exceeding 200 parameter slots
expectionTestCases++;
types = new Class<?>[101];
Arrays.fill(types, 0, 50, long.class);
Arrays.fill(types, 50, 100, double.class);
types[100] = int.class;
test(MethodType.methodType(String.class, types));
expectionTestCases++;
types = new Class<?>[201];
Arrays.fill(types, int.class);
test(MethodType.methodType(String.class, types));
if (exceedMaxParamSlots != expectionTestCases) {
throw new RuntimeException("expected one test case exceeding 200 param slots");
}
}
/**
* Tests if StringConcatException is thrown if the given concatType
* has more than 200 parameter slots
*/
static void test(MethodType concatType) throws StringConcatException {
String recipe = "";
int slots = 0;
for (Class<?> c : concatType.parameterList()) {
recipe += "\1";
slots++;
if (c == double.class || c == long.class) {
slots++;
}
}
if (slots > MAX_PARAM_SLOTS) {
exceedMaxParamSlots++;
}
System.out.format("Test %s parameter slots%n", slots);
try {
StringConcatFactory.makeConcat(MethodHandles.lookup(), "name", concatType);
if (slots > MAX_PARAM_SLOTS) {
throw new RuntimeException("StringConcatException not thrown");
}
} catch (StringConcatException e) {
if (slots <= MAX_PARAM_SLOTS) throw e;
}
try {
StringConcatFactory.makeConcatWithConstants(MethodHandles.lookup(), "name",
concatType, recipe);
if (slots > MAX_PARAM_SLOTS) {
throw new RuntimeException("StringConcatException not thrown");
}
} catch (StringConcatException e) {
if (slots <= MAX_PARAM_SLOTS) throw e;
}
}
}
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